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authorEzequiel Garcia <elezegarcia@gmail.com>2012-10-19 14:33:11 +0200
committerPekka Enberg <penberg@kernel.org>2012-10-31 07:51:35 +0100
commitfe74fe2bf293d061826f0d7afc2ca8456bdbb40e (patch)
tree6350a32c300e3ff74b4ff52355f98a751f6a2442 /mm/slob.c
parentmm/slob: Drop usage of page->private for storing page-sized allocations (diff)
downloadlinux-fe74fe2bf293d061826f0d7afc2ca8456bdbb40e.tar.xz
linux-fe74fe2bf293d061826f0d7afc2ca8456bdbb40e.zip
mm/slob: Use object_size field in kmem_cache_size()
Fields object_size and size are not the same: the latter might include slab metadata. Return object_size field in kmem_cache_size(). Also, improve trace accuracy by correctly tracing reported size. Cc: Pekka Enberg <penberg@kernel.org> Cc: Matt Mackall <mpm@selenic.com> Acked-by: Christoph Lameter <cl@linux.com> Acked-by: David Rientjes <rientjes@google.com> Signed-off-by: Ezequiel Garcia <elezegarcia@gmail.com> Signed-off-by: Pekka Enberg <penberg@kernel.org>
Diffstat (limited to 'mm/slob.c')
-rw-r--r--mm/slob.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/mm/slob.c b/mm/slob.c
index 06a5ec70e728..287a88aa4a61 100644
--- a/mm/slob.c
+++ b/mm/slob.c
@@ -554,12 +554,12 @@ void *kmem_cache_alloc_node(struct kmem_cache *c, gfp_t flags, int node)
if (c->size < PAGE_SIZE) {
b = slob_alloc(c->size, flags, c->align, node);
- trace_kmem_cache_alloc_node(_RET_IP_, b, c->size,
+ trace_kmem_cache_alloc_node(_RET_IP_, b, c->object_size,
SLOB_UNITS(c->size) * SLOB_UNIT,
flags, node);
} else {
b = slob_new_pages(flags, get_order(c->size), node);
- trace_kmem_cache_alloc_node(_RET_IP_, b, c->size,
+ trace_kmem_cache_alloc_node(_RET_IP_, b, c->object_size,
PAGE_SIZE << get_order(c->size),
flags, node);
}
@@ -606,7 +606,7 @@ EXPORT_SYMBOL(kmem_cache_free);
unsigned int kmem_cache_size(struct kmem_cache *c)
{
- return c->size;
+ return c->object_size;
}
EXPORT_SYMBOL(kmem_cache_size);